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Sustainable Refurbishment, Retrofit, Energy Management in Housing

Sustainable Refurbishment, Retrofit, Energy Management in Housing. Rain Kimmel Skirmante Stankeviciute Natasa Ilic Lucie Riffort. Threats to Asian elephants. Habitat loss and fragmentation Illegal hunting and trade Capture of wild elephants Genetic threat Disease.

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Sustainable Refurbishment, Retrofit, Energy Management in Housing

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  1. Sustainable Refurbishment, Retrofit, Energy Management in Housing Rain Kimmel SkirmanteStankeviciute NatasaIlic Lucie Riffort

  2. Threats to Asian elephants Habitat loss and fragmentation Illegal hunting and trade Capture of wild elephants Genetic threat Disease Sustainable Refurbishment, Retrofit Energy Management in Housing

  3. Sustainable Refurbishment Zirmunu g. 116 Sustainabl Sustainable Refurbishment, Retrofit Energy Management in Housing • Energyefficiencytask • Façade/gable/roof/balconies insulation • Thermal bridge solutions • U value calculation & heat loss frame • Cost calculations • Heating task • Existingheatingsystemandmainproblems • Solutionsforheating sourceandtype • Cost • Green roof • Inverted Roof • Extensive green roof • Intensive green roof • Building services

  4. Existing building Existing energy efficiency class < D Energy consumption No ventilation Indoor climate does not meet the requirements Old heating system Sustainable Refurbishment, Retrofit Energy Management in Housing

  5. Energy efficiency • Façade/gable/roof/balconies insulation • Thermal bridge solutions • U value calculation & heat loss frame • Cost calculations Sustainable Refurbishment, Retrofit Energy Management in Housing

  6. Energy efficiency Current situation • Annual heating energy demand 241,8KWh/m²*year • Thermal conductivities (U-values) • Wall 2,8 W/m²*K • Roof 0,65 W/m²*K • Windows 3,0 W/m²*K Sustainable Refurbishment, Retrofit Energy Management in Housing

  7. Energy efficiency Thermal bridges External wall/ ceiling Window/ External wall External wall Sustainable Refurbishment, Retrofit Energy Management in Housing

  8. Energy efficiency Renovation recommendation U-value 0,125 W/m²*K Sustainable Refurbishment, Retrofit Energy Management in Housing

  9. Energy efficiency Thermal bridges Balconies closed with windows Sustainable Refurbishment, Retrofit Energy Management in Housing

  10. Energy efficiency • Roof • 400mm of rockwool • SBS • Drainage layer • Soil 100mm • Windows • U=0,77 W/m²K • Basement 100mm Sustainable Refurbishment, Retrofit Energy Management in Housing

  11. Energy efficiency • Current heating energy demand 241,8KWh/m²*year • After renovation 25,49KWh/m²*year Sustainable Refurbishment, Retrofit Energy Management in Housing

  12. Energy efficiency Profitability • Considering loan interests and rise of energy prices • Retrofitting pays off in 13 years • Also better indoor climate • Less CO2 emissions from heating Sustainable Refurbishment, Retrofit Energy Management in Housing

  13. Heating system • Existingheatingsystemandmainproblems • Solutionsforheating sourceandtype • Solarwall • Geothermalheating • Radiators renewal • Cost Sustainable Refurbishment, Retrofit Energy Management in Housing

  14. Problems Old Rapidly increasing prices CO2 emission Temperature depends on local governance Inefficiency Low comfort level Sustainable Refurbishment, Retrofit Energy Management in Housing

  15. Energy efficiency Solutions for heating source and type • Heating sources • Burning other renewable energy source • Solar energy • Wind turbines • Geothermal heat pumps • Combine heating • Heating types • Floor heating • Radiators renewal Sustainable Refurbishment, Retrofit Energy Management in Housing

  16. Solar wall Lesscost then solarpanels/collectors Use passive solar energy Can be use as facade and insulation material Works asventilationandheatingsystem at the sametime Needed156 m2ofSolarWall 1 m2 wall reduces normal heating cost about 131 Lt per year Sustainable Refurbishment, Retrofit Energy Management in Housing

  17. Geothermal heating Energyclean, sustainableandfree Useheatfromground (notgeothermalwater) Needelectricity to pumptheheat Heatpump 40 kW Drills about 140 m Will be usedforbuildingheating Sustainable Refurbishment, Retrofit Energy Management in Housing

  18. Radiators renewal Keep and use old radiators Cost 1/5 full radiators renewal Thermostaticheadinstalled on old radiators Energy demand - 10% less More comfort Sustainable Refurbishment, Retrofit Energy Management in Housing

  19. Energy efficiency Cost Sustainable Refurbishment, Retrofit Energy Management in Housing

  20. Thermal insulation laid over the waterproofing layer If the structure incorporates a concrete slab it will normally be cost-effective to design the slab to support the load of 80 - 120 kg/m2 imposed by a ballasted inverted roof system Roof analysis Inverted roof Sustainable Refurbishment, Retrofit Energy Management in Housing

  21. Roof analysis Intensive green roof Sustainable Refurbishment, Retrofit Energy Management in Housing 21 Planting media – minimum 30 cm deep Weights ranging from 120 to 200 kilograms per square meter Almost always used for new construction

  22. Roof analysis Extensive green roof Sustainable Refurbishment, Retrofit Energy Management in Housing 22 Saturated weight of 8 to 40 kilograms per square meter Planting media of 3 to 12 cm thick Most extensive green roofs are not designed for public access

  23. Roof analisis Construction of green roof Sustainable Refurbishment, Retrofit Energy Management in Housing

  24. Roof analisis Green roof benefits • Insulation – energy cost reduction • Building acoustics • Storm water retention • Lasts longer & lower maintenance costs • Open space • Habitat Sustainable Refurbishment, Retrofit Energy Management in Housing

  25. Ventilation • Mechanical ventilation with heat recovery system • Too much ventilationdiscomfort Excessive energy use • Too little ventilationmoisture Condensation and mould growth MVHR ventilation control Sustainable Refurbishment, Retrofit, Energy Management in Housing

  26. Ventilation Principle Sustainable Refurbishment, Retrofit, Energy Management in Housing

  27. Ventilation Solarwall air heating • Sun’s energy to pre-heat ventilation air • 1761 sun hours / year • 30+ yearslifespan • No maintenance Sustainable Refurbishment, Retrofit, Energy Management in Housing

  28. Ventilation SOLARWALL AIR HEATING: WORKING Sustainable Refurbishment, Retrofit, Energy Management in Housing

  29. Conclusion The majority of our existing stock requires some level of retrofit to enable us to live and work more sustainably. In this project we suggest reachable ways to make our homes more sustainable. Sustainable Refurbishment, Retrofit Energy Management in Housing

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